The Elastic Common Schema (ECS) offers a standardized model for organizing data within the Elastic Stack, facilitating consistent examination through search, visualizations, and automated analysis. While Elastic provides numerous integrations that adhere to ECS standards, custom data sources can also be normalized to this schema, though it can be a time-consuming process. The Elastic Security detection engine aids in identifying ECS non-compliance, generating alerts for events lacking the ecs.version field or using improper field values. Detection rules can also ensure that network events have both source and destination fields populated, and that fields processed by ingest pipelines, such as user agent fields, are complete. These detection rules help refine data ingestion by promptly highlighting non-compliant events, which can be addressed systematically. A free trial of Elastic Cloud is available for users to experiment with these detection rules and improve ECS compliance in their data processes.